PT-2026-5541 · Linux+2 · Linux Kernel+2

Published 2026-01-01 · Updated 2026-05-22 · CVE-2026-23038

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

AV:A/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A memory leak exists in the nfs4 ff alloc deviceid node() function within the pnfs/flexfiles component. If memory allocation for ds versions fails, the function does not free the already allocated dsaddrs list before exiting, resulting in a memory leak. The fix involves jumping to a different label, out err drain dsaddrs, which ensures the dsaddrs list is properly freed.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Missing Release of Resource after Effective Lifetime

Memory Leak

Weakness Enumeration

CWE-772

CWE-401

Related Identifiers

BDU:2026-03761

CVE-2026-23038

ECHO-93CE-7F96-B607

OESA-2026-1341

OESA-2026-1566

OESA-2026-1567

OESA-2026-1570

OPENSUSE-SU-2026:20416-1

SUSE-SU-2026:0962-1

SUSE-SU-2026:1081-1

SUSE-SU-2026:20838-1

SUSE-SU-2026:20931-1

SUSE-SU-2026:21284-1

USN-8162-1

USN-8180-1

USN-8180-2

USN-8180-3

USN-8180-4

USN-8180-5

USN-8180-6

USN-8186-1

USN-8187-1

USN-8188-1

USN-8243-1

USN-8275-1

USN-8278-1

USN-8289-1

USN-8296-1

USN-8297-1

Affected Products

Linuxmint

Linux Kernel

Ubuntu

References · 1193

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23038.json · Exploit
• https://ubuntu.com/security/CVE-2026-23083 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40223 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-71137 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40055 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-39764 · Security Note
• https://ubuntu.com/security/CVE-2025-68813 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-23038 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23148 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40030 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23123 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-54145 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-71235 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-39853 · Security Note
• https://ubuntu.com/security/CVE-2025-40149 · Vendor Advisory